Invented "smart" needle which finds the vein

A pioneering medical syringe, which understands when drilling the vein and thus stops further pressure, British researchers have created in order to reduce the painful injections.
The researchers at Nottingham Trent University and the medical equipment company Olberon design and produce a new syringe, according to the British «The Telegraph», and said that the innovative needle would be more expensive than conventional.
Note that it is estimated that one third of medical intravenous injection taking place each year fail the first time, often by carelessness of doctors and nurses.